Francis roach



closet.

In the drawings, A -derrotfis the valve-case UNITED` STATEs PATENT OFFICE.

4FRANCIS noAoH, oF BosToN, MAssAonUsETTs,Ass1oNoR To HiMsELF AND JOSEPH ZANE, OF SAME PLACE.

IMPRovEMENTVIN r-Amgj'g Specification forming part of Letters Patent No. A81,948, dated 'September 8,1668.

Figure l is an elevation,and Fig. -2 a longi-4 tudinal section, of a faucet or coek'provided with my improvenintnt.

, In this faucet the valve is (closed by the ex pansive power of aspring, and is raised off its seat by a rotary tubular key,.arran'ge d in line with and constituting part of the faucet-neck which goes through the seatboard of'. the

of the cock or faucet, suchf'ca'se being provided with a valve-seat, a, an iuduetion-tube, b, and an eduction-tube, c, they bein'gairanged as represented in Fig. 2.

A cap,` B, having atubular neck, d, extend l iug upward from it as shown in the drawings, is'screwed on the top' ofthe valve-case A. A cylindrical spindle or rod, O, having at its lower end a valve, D, to rest on the-seat a, extepds upward through the case A, theeaprB,

.and the neck d, and projects out of and above the latter in manner as exhibited in-Fig; 2.

A helical spring, D. encompasses the part of the spindle C which is within the case A, and at its upper end bears -against the lower part 'of the cap. The lower end ofthe spring rests on the valve, the said. spring by its ex pansive force operating to keep the valve on its seat against the pressure ofthe iluid when in the induction-tube b.

A tubular key, E, provided with 'two or any other proper number of arms, e e, encompasses that part of the spindle C which projects above the neck d, and its barrel m has a diameter equal to that olthe neck, the said barrel being` in prolongation of or in line with the neck in manner as represented. At its top the said key rests against an annulus, k, held in place on the spindle C bythe head of a screw, F, screwed into the upper end of such spindle O. A horizontal section of the anuulus and the upper part ofthe spindle isrepresented in Fig. 4, where it will be seen the two-are so formed'that the annulus cannot revo'lvepn the spindle. The annulus, so combined with or applied to the'spindle, prevent-s the key while being revolved from unserewing the screw F.

The lower eniLof the barrel of the key andv the upper end of the neck d are each formed with two semi-helical cams, j'f, and two stops or shoulders, g g, they being formed and arranged as shown in Figs. 1, 2, and 3, the latter of which is a representation of vthe cams and stops as shown in `a plane at right angles to that in which the elevationof Fig. l is taken. By revolving the key E on'the spindle U the cams of the said key will be made to turnv 'and rise on those of the neck so as to raise the valveotl its -seat against the expansive force' of the spring, which will cause the key to revolve inthe opposite direction, and will close the valve on the withdrawal of the hand of the operative from thearmsof the key.

A small hole, h, made in the upper part of the key, and arranged in manner as shown in Fig. 1, 'serves to allow oil to be poured into the key to lubrcate it. It also serves, in connection with another hole, '5, made in the spindle to receivea -pin to hold the spindle and the key in their proper positions, to lreceive the annulus andtheserew after contraction of the spring.

' I make no claim to theemployment and arrangementof a spring, in manner as repre sented, toreturn a valve toward and hold it firmly upon its seat against the pressure of a fluid tending to force the valve oiic its seat; nor do I claim, for the purpose oi' raising or moving the valve oii its seat when pressed thereon by a spring, the combination of a cammed lever with the stem of the valve andso as to turn in a vertical plane against the top of the valve-case; Anor do I claimV any constructionor arrangement of parts as exhibited in the United States Patent No. 71,790

granted to me or my assignees, as my presentV faucet diii'ers materially from that described.`

in such patent and is capable yof accomplish ing what cannot be eiected with such patented faucet.

The advantage of my improvement is that,

by means of it, the valve is not revolved so Aas to lgrind on or against its seat, and it is left free to accommodate-oradjust itself toits seat under .the pressure of the spring, for the'key E attains its lowest position on the spindle() after the valve has met its seat. I n order to allow the spring full action to-press the valve upon' its seat is the main purpose of the, lad' '.jllst-ing-screw Fand the annnlns k, applied to the spindlein manner as set forth.

- In lien of the cams and stops as described, the key may be screwed upon a screwflformed on the neck d, and so Vmade as to enable the valve to beheld oi' its seat when raised there from, the screw F and the annnlus'ig applied to the spindle as described, being -nsed with` l such a change.

1..'1he arrangement of the induction and ednction` pipes b c, the valveseat a, the

valve D, the case A, the .spring D', the' stein' U, the cap B', the neck d, the 'key E, andthe camal f f, and stops g g, the whole being as and to operate as hereinbefore'describe'd and as described, with the key E 1 rranged with'- tlie spindle C, its valve and spring, and the neck d, substantially' inv manner andnnder circumstances as hereinbefore specified.

FRANCIS RUAUH.

Witnesses: A

R. H.EDDY, .1?. P. HALE, Jr.` 

